/*
 * Copyright (c) 2011 Junichiro Okuno
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of Junichiro Okuno.
 */

package tcp_net.management;

import java.io.*;
import java.util.List;

/**
	This class provides user inputs and outputs for defined user commands via CUI terminal.
	@author J. Okuno
*/
public class CUITerminal extends Thread 
{
	/**
		A user command processor
	*/
	private UserCommandProcesssor uc_processor;
	
	/**
		true if the thread is to be stopped running
	*/
	private boolean stop;
	
	/**
		Init the CUI terminal
	*/
	public CUITerminal()
	{
		System.out.println("*** Welcome ***");
		uc_processor = new UserCommandProcesssor();
		stop = false;
	}
	
	/**
		This method starts CUI terminal thread
	*/
	public void run()
	{
		while(!stop)
		{
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
			try
			{
				System.out.print("User input: ");
				String line = br.readLine();
				List<String> outputs = uc_processor.process(line);
				
				if(outputs != null)
				{
					for(String str : outputs) 
					{ 
						System.out.println(str);
						
						if(str.equals("QUIT!")) 
						{ 
							stop = true; 
							System.exit(0); 
						}
					}
				}
				
			}
			catch(Exception ex) {}
		}
	}
	
	/**
		This method stops the CUI terminal thread
	*/
	public void stopCUITerminal() { stop = true; } 
}